Developed in 1960.  The fuel tank placement on the tips of the wings provide stability on water [Ref 316].


Data on design, manufacture and status

Design authority: Monte-Copter, Inc.

Primary manufacturer: Monte-Copter, Inc.

Parent type: No type defined

Aircraft status: No longer flying


Primary flight and mechanical characteristics

VTOL type: Helicopter

Lift configuration: Single main rotor

Crew required: 1

Crew seating: Side-by-side

Landing gear: Wheels (non-retractable)

Layout and Dimensions

Data on aircraft size

Overall Dimensions
Overall Height: 2.51 m 8.3 ft
Overall Length: 10.97 m 36.0 ft
Overall Width: 10.97 m 36.0 ft
Airframe Dimensions
Airframe Length: 4.65 m 15.3 ft
Airframe Width:  
Airframe Height: 2.51 m 8.3 ft
Landing Gear Dimensions
Landing Gear Base:  
Landing Gear Track:  
Cabin Dimensions
Cabin Internal Height:  
Cabin Internal Length:  
Cabin Internal Width:  

Weights and Performance

Data on aircraft weight and flight characteristics

Cruise Speed: 75 mph (120.701 km/h)

Max Gross Weight (ground): 907 kg 2,000 lb
Max Gross Weight (airborne):  
Max Take-off Weight: 907 kg 2,000 lb
Empty Weight: 559 kg 1,232 lb
Useful Load: 348 kg 768 lb
Empty Weight Fraction: 0.616
Climb Performance
Max Rate of Climb: 6 m/s 1,100 fpm
Hover Performance
Hover Ceiling IGE:  
Hover Ceiling OGE:  
Max Level Flight Speed: 153 km/h 83 kts
Never Exceed Speed:  
Service Ceiling: 4,572 m 15,000 ft
Range and Endurance
Max Range: 161 km 87 nm
Max Endurance:  

Engine Details

Aircraft powerplant (lift and/or propulsion)

Provided powerplant data is for uninstalled, sea level, static operations.

Number of engines: 2
Designation: Continental Model 141 turbine
Manufacturer: Continental Motors
Normal Ratings
Max continuous:  
Take-off / rated: 149 kW 200 hp
OEI Ratings
OEI contingency:  
OEI continuous:  
OEI 30-second:  
OEI intermediate:  

Primary Lift Device

Data on primary lift devices such as main rotors

Main Rotor Characteristics
Diameter: 10.97 m 36.00 ft
Direction of Rotation: Counterclockwise
Hub Type:
Main Rotor Blade Characteristics
Blade Construction:
Blade Chord:  
Blade Tip Geometry: Tip-jet
Blade Twist:  
Number of Blades: 2
Main Rotor Derived Characteristics
Disc Area: 94.56 m² 1017.9 ft²
Disc Loading: 9.59 kg/m² 1.965 lb/ft²
Main Rotor Blade Derived Characteristics
Blade area per blade:  
Tip Speed:  

Primary Control Device

Data on primary control devices such as tail rotors

Tail Rotor Characteristics
Configuration: Unknown
Direction of Rotation: Unknown
Tail Rotor Blade Characteristics
Number of Blades:  
Blade Construction: N/A
Blade Chord:  
Blade Twist:  
Tail Rotor Derived Characteristics
Disc Area:  
Tail Rotor Blade Derived Characteristics
Tip Speed:  
Blade Area (per blade):  

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